Meet the Martian hopefuls: Elon Musk and all the other people trying to get to Mars

Ready set go. Elon Musk still really wants to put people in a canister, set off a controlled explosion beneath them, and shoot them out of the Earth's atmosphere towards a barren, airless piece of rock—preferably one 33 million miles away. On Friday at the International Astronautical Congress in ...

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